<template>
  <div class="container">
    <!-- 头部 -->
    <van-nav-bar
      v-if="isShowNav"
      fixed
      title="黑马头条"
      right-text="搜索"
      @click-right="$router.push('/search')"
    />
    <!-- 二级路由组件渲染位置 -->
    <div
      class="my-wrapper"
      :class="{noTop:!isShowNav}"
    >
      <!-- <keep-alive include="home-index"> -->
      <router-view></router-view>
      <!-- </keep-alive> -->
    </div>
    <!-- tabBar -->
    <van-tabbar route>
      <van-tabbar-item
        to="/"
        icon="home-o"
      >首页</van-tabbar-item>
      <van-tabbar-item
        to="/question"
        icon="search"
      >问答</van-tabbar-item>
      <van-tabbar-item
        to="/video"
        icon="video-o"
      >视频</van-tabbar-item>
      <van-tabbar-item
        to="/user"
        icon="user-o"
      >我的</van-tabbar-item>
    </van-tabbar>
  </div>
</template>

<script>
export default {
  name: 'layout',
  computed: {
    isShowNav () {
      return this.$route.path !== '/user'
    }
  }
}
</script>

<style lang="less" scoped>
.container {
  width: 100%;
  height: 100%;
  position: relative;
  .my-wrapper {
    width: 100%;
    height: 100%;
    overflow: hidden;
    padding-top: 46px;
    padding-bottom: 50px;
    box-sizing: border-box;
    &.noTop {
      padding-top: 0;
    }
  }
}
</style>
